Height-adjustable table having reinforced table top

ABSTRACT

The present invention relates to a height-adjustable table comprising a table top comprising a first table face and a second table face, and at least a first leg assembly having a first leg end and a second leg end, the first leg assembly comprising a first leg member and a second leg member relatively movable in relation to each other along a longitudinal axis. The second table face comprises at least a first recess arranged to receive a first guide rail where the first leg end of the leg assembly is connected with the guide rail.

FIELD OF THE INVENTION

The present invention relates to a height-adjustable table comprising atable top comprising a first table face and a second table face, and atleast a first leg assembly having a first leg end and a second leg end,the first leg assembly comprising a first leg member and a second legmember relatively movable in relation to each other along a longitudinalaxis.

BACKGROUND ART

During recent years, height-adjustable tables, i.e. sit/stand tables,have increasingly been used in e.g. offices.

When sitting at a table, it is desired to have the table top as close tothe thighs as possible. However, since the traditional build-up of afixed height table had to leave plenty of room for users of differentsizes sitting at the table, the surface underneath the table was lessimportant. However, both the ability to change the height of the tableand the increasing use of electronic equipment has changed the desireddesigns of tables.

More and more often, multiple monitors are attached on the very edge ofthe table top, and thereby, they subject a heavy load on the edge of thetable top. Therefore, both the table top itself and the leg assembliesare subjected to a moment or torque from the load from e.g. monitors. Inthis context, the moment is considered a quantity that represents themagnitude of force applied to a rotational system at a distance from theaxis of rotation i.e. a load subjected to the perimeter of the table topat a distance from the support i.e. the leg assembly. Furthermore,ergonomically correct tables with a thin table top allowing the user tolower the table to a position as close to his or her legs/thighs aspossible are increasingly required. However, the thin table top reducesthe strength of the table top which is traditionally supported by strongprofiles attached to the table top.

SUMMARY OF THE INVENTION

It is an object of the present invention to wholly or partly overcomethe above disadvantages and drawbacks of the prior art. Morespecifically, it is an object to provide an improved height-adjustabletable comprising a table top that is thin due to the ergonomic demandswhile still providing sufficient strength to withstand the loads ofeveryday use.

Furthermore, it is an object of the invention to provide aheight-adjustable table comprising a table top having a substantiallyeven surface in the area of the table top immediately above the legs orthighs of a user.

The above objects, together with numerous other objects, advantages andfeatures, which will become evident from the below description, areaccomplished by a solution in accordance with the present invention by aheight-adjustable table comprising:

-   -   a table top comprising a first table face and a second table        face, and    -   at least a first leg assembly having a first leg end and a        second leg end, the first leg assembly comprising a first leg        member and a second leg member relatively movable in relation to        each other along a longitudinal axis,        wherein the second table face comprises at least a first recess        arranged to receive a first guide rail where the first leg end        of the leg assembly is connected with the guide rail.

In this way, it is achieved that the table top may easily be adjusted inrelation to the at least one leg assembly. If a load on the table topneeds to be supported decentrally, it is advantageous that the legassembly of the height-adjustable table may be moved to obtain a morepreferred load distribution in the leg. When changing the distance fromthe load to the leg, i.e. the “arm”, when calculating the bendingmoment, it is possible to reduce the moment on the leg. The load couldbe heavy monitors arranged on the one side of the table top, in whichsituation it would be beneficial to move the leg assembly towards theside of the monitors. Furthermore, the fact that many table users havethree or more monitors, the table needs to allow for the user to turn inorder to be correctly oriented towards each monitor. Long-term torsionof the back spine is highly dangerous for the health, and therefore, itis important that the table user may continue to have his or her legsand torso pointing in the same direction. When the guide rails areintegrated in the table top, it is possible for the user to move his orher legs freely under the table top without the legs being blocked bysupporting guide rails under the table top.

A problem with height-adjustable tables is that the leg assembly needsto function regardless of the load distribution on the table top.Considering a leg assembly connected with the table at a centrallyarranged point, a load on a part of the outer perimeter of the table topsubjects a bending moment on the leg assembly. In order to ensure thatthe table continues to be height-adjustable, it is beneficial that theleg assembly may be moved to a point that supports the table top in amanner that results in a smaller bending moment on the leg assembly.

The height-adjustable table described above may further comprise asecond guide rail.

In this way, it is possible to further stabilise the table top inrelation to the at least one leg.

Furthermore, the height-adjustable table may further comprise a firsttransverse member.

The transverse member may be attached to the leg assembly in order tostabilise the leg in relation to the table top.

Also, the leg assembly may comprise a motorised height-adjustment means.

Additionally, the leg assembly may comprise a spring-loadedheight-adjustment means.

Moreover, the first guide rail and/or the second guide rail may be evenwith the second table surface of the table top.

In this way, it is possible to generate a firm connection between thetable parts.

In addition, the second table face may comprise a plurality of recessesand a plurality of guide rails.

Further, the leg assembly may comprise a foot arranged at the second endof the leg.

Also, the guide rails may have a C-profiled cross-section.

Furthermore, the guide rails may have an I-profiled cross-section.

Furthermore, the height-adjustable table may comprise a plurality of legassemblies.

Moreover, the leg assemblies may be kept in position by one or moretransverse members.

In addition, the leg assemblies may be connected with the guide rails bya spring-loaded ball connection.

In this way, it is possible to release the pressure on the balls andadjust the position of the leg assemblies in relation to the guide railsin a manner not requiring tools.

Also, the guide rail(s) may be made of aluminium.

Additionally, the guide rail(s) may be made of stainless steel.

Furthermore, the guide rail(s) may be made of fibre-reinforced polymer.

In addition, the guide rail(s) may be arranged more than 20 mm from theouter perimeter of the table top. The guide rail(s) may be arranged from20 mm to 500 mm from the perimeter of the table top.

Moreover, the depth of the recess arranged to receive the rail may beapproximately 20-80%, more preferably 30-70%, or even more preferably40-60% of the thickness of the table top.

Also, the table top may have a thickness of 10-70 mm, preferably 15-60mm, more preferably 20-50 mm, or even more preferably 25-40 mm.

Additionally, the first guide rail and/or the second guide rail maycomprise threaded apertures or blind holes for fastening the legassembly/assemblies to the guide rails.

Further, the threaded apertures or blind holes for fastening the legs tothe guide rails may be arranged in nuts slidably arranged in the guiderails.

The height-adjustable table may further comprise a first transversemember extending from a first guide rail to a second guide rail, thetransverse member being arranged to support the at least one legassembly.

The guide rail may project from the second surface of the table top. Inthis way a firm connection between the guide rail and e.g. a transversemember is ensured.

The guide rail may project less than 5 mm from the second surface of thetable top and more preferred less than 2 mm from the second surface.

Furthermore, the transverse member may be arranged substantiallyperpendicularly to the guide rail.

Also, the height-adjustable table may comprise a further transversemember.

Moreover, the at least one leg assembly may be arranged between twotransverse members.

In addition, the transverse member may have an L-shaped cross-section.

In this way, it is achieved that the transverse member is rigid andstill of low weight.

Additionally, the guide rails may comprise slidably arranged boltsarranged to connect the at least one leg assembly with the guide rails.

Moreover, the guide rails may comprise nuts having a generallyrectangular outer outline. In this way, it is possible to slide the nutin the guide rails and still have the nuts prevented from rotating thein guide rails.

Also, the guide rail may comprise a projection section extending fromone side of the rail at least partially along the longitudinal axis ofthe rail.

In addition, the guide rails may be fixated in the recess by a fasteningmeans comprising a head that, in its mounted position, extends at leastpartially over the projecting section of the rail.

The head of the fastening means may be the head of a screw, nail, plugor a similar projection extending from the general body of the fasteningmeans.

Further, the projecting section of the guide rail may extend from therail towards the rim of the table top. In this way, it is achieved thatthe rail is capable of withstanding a greater torque applied to the raile.g. from an arm for a monitor, a privacy screen or hangers mounted inthe rail.

Additionally, two guide rails arranged substantially perpendicularly toeach other may further comprise a torque bracket connecting the one railwith the other. In this way, the guide rail having a torque subjectedthereto achieves an increased resistance to the torque due to theconnection to the second guide rail. Because the second guide rail isarranged substantially perpendicularly to first guide rail, the secondguide rail connected by the torque bracket will act as an extension ofthe “arm” of the first guide rail and hence increase the resistance tothe torque applied.

The torque bracket may comprise an aperture arranged to receive meansfor affixing it directly to the table top.

Also, the recess may comprise a first recess extension arrangedsubstantially perpendicularly to the longitudinal direction of therecess, extending at least partially along the longitudinal axis of therecess. The first recess extension may have a depth from the second sideof the table top that is different from the recess.

Moreover, the depth of the first recess extension may be smaller thanthat of the recess.

In addition, the recess may comprise a broadened recess section having agreater width than the general width of the recess and/or of the secondrecessed section. In this way, it is possible to achieve a smallerdistance between the end of the recess and the guide rail arranged inthe recess. This is because the grinding machine will have a radiuslarger than that of the corner of the guide rail. Hence, the diameter ofthe tool of the grinding machine may be larger without causing therecess to be longer. Furthermore, due to the broadened recess sectionsit is possible to grasp the guide rails in the sides of the guide railsduring the mounting of the guide rails in the recess. Hence, an easierand better manufacturing process is achieved.

Furthermore, the recess may comprise a second recess extension arrangedsubstantially perpendicularly to the longitudinal direction of therecess, and extending at least partially along the longitudinal axis ofthe recess. The second recess extension may have a depth from the secondside of the table top that is different from that of the recess and/orthat of the first recess extension.

Further, the second recess extension of the table top may comprise blindholes for receiving fastening means arranged in an area not covered bythe guide rail or by a part projecting from the rail. In this way, amore simple manufacturing process is achieved when mounting the guiderails in the recesses.

Finally, the at least one leg assembly may comprise a fastening plateconnecting the table top with the first leg end.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention and its many advantages will be described in more detailbelow with reference to the accompanying schematic drawings, which forthe purpose of illustration show some non-limiting embodiments and inwhich

FIG. 1 shows a height-adjustable table according to the invention,

FIG. 2 is an exploded view of the height-adjustable table of FIG. 1,

FIG. 3 is a schematic diagram of a table top comprising integrated guiderails,

FIGS. 4A-4F show cross-sectional views of different embodiments of theintegrated guide rails of FIG. 3,

FIG. 5 shows an embodiment of the table top comprising more integratedguide rails.

FIG. 6 shows an embodiment of the guide rail,

FIGS. 7A-7F show embodiments of the guide rails mounted in a table top,

FIG. 8 shows an embodiment of a height-adjustable table having one legassembly,

FIG. 9 shows an embodiment of a height-adjustable table having one legassembly,

FIG. 10 shows an embodiment of a height-adjustable table having one legassembly,

FIG. 11 shows a height-adjustable table having two leg assemblies andone transverse member,

FIG. 12 shows a height-adjustable table having two leg assemblies andone transverse member,

FIG. 13 shows a height-adjustable table having various equipmentattached in the guide rails,

FIG. 14 shows deflection of a table top of a height-adjustable tablehaving one leg assembly,

FIGS. 15A and 15B show a further embodiment of the guide rails,

FIGS. 16A and 16B show the broadened recess section of the recess, and

FIG. 17 shows the torque fitting in a mounted manner.

All the figures are highly schematic and not necessarily to scale, andthey show only those parts which are necessary in order to elucidate theinvention, other parts being omitted or merely suggested.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a height-adjustable table 1 comprising a table top 2 andtwo leg assemblies 3. The table top 2 comprises an integrated guide rail4. Furthermore, the leg assemblies 3 each comprises a foot or a baseplate 5. Each leg assembly comprises a first leg member 3A and a secondleg member 3B. The feet or the base plates 5 may be connected to eachother, thereby forming a single base plate joining both leg assemblies3. A first and a second transverse member 6, 7 are shown with dottedlines. The table top 2 comprises a first face 8 and a second face 9. Thefirst leg end 3C is connected with the table top 2 via the transversemembers 6, 7, and the second leg end 3D is connected with the feet 5 orthe base plate.

FIG. 2 shows the table of FIG. 1 seen from below, and similarly, FIG. 3shows the table of FIG. 2 in an exploded view. It is seen that the guiderails 4 are arranged in recesses 10 in the second face 9 of the tabletop 2. In order to adjust the height of the leg assemblies, a linearactuator is arranged in each of the leg assemblies 3. In thisembodiment, the leg assemblies 3 comprise an electrical motor arrangedin a motor housing 11. The motor housing 11 is arranged between thefirst transverse member 6 and the second transverse member 7. Both thefirst transverse member 6 and the second transverse member 7 have anL-shaped cross-section. They may also have a T-shaped cross-section. Inboth ways, it is achieved that the transverse member(s) is/are rigid andstill of low weight. It will be understood that other cross-sections maybe applied too, such as rectangular, square or triangular cross-sectionsor variations thereof. The transverse members 6, 7 comprise a number ofapertures 26, 27 for connecting with e.g. the motor housing 11. Theapertures may be substantially circular apertures 26 or elongatedapertures 27. The motor housing 11 may also be arranged inside the legassembly, and in such an embodiment, one member of the leg assemblywould be connected with the transverse members.

FIG. 4 shows a heavy load 12 attached on the transverse rail 15. Thetransverse rail 15 is a specific rail. When the heavy load 12 issubjected to the perimeter 16 of the table top 2, a bending moment BM issubjected on the leg assemblies 3. Particularly because the first legmember 3A and the second leg member 3B of a leg assembly 3 need to beslidably mounted in relation to each other, the function of the legassembly 3 is effected by such a bending moment BM caused by the load 12subjected to the table.

The section where the two leg members at least touch each other, andhence the point affected the most, e.g. in a fully elevated position ofthe table, is indicated with a dotted circle 16. In order to minimisethe effect of the bending moment BM, the leg assemblies 3 may be movedalong an arrow d1. When moving the leg assemblies 3 further towards thetransverse rail 15, the distance parallel to d1, i.e. the “arm” used tocalculate the torque, is shortened, and hence, the bending moment BM isreduced. In a similar manner, if the table 1 was likely to be subjectedto even more heavy loads at the perimeter opposite the monitors 13, theleg assemblies 3 would have to be moved further away from the monitors.

FIGS. 5A-5D show different embodiments of the table top comprisingrecesses 10 for receiving the guide rails 4 and/or the transverse rails15. It will be understood by the person skilled in the art that therecesses 10, and thereby the rails 4, 15, may be arranged in variousother positions in the second face 9 of the table top 2. In order torelate the embodiment of FIG. 4 to FIGS. 5A-5D, it is indicated as anexample in FIG. 5A and FIG. 5C how the direction d1 should be seen. Thedirection d1 is the same for all embodiments in FIGS. 5A-5D.

FIG. 6 shows a cross-sectional view of the rail 4. The rail 4 comprisesa number of corrugations 20 extending from the side wall 21 of the rail.The corrugations 20 serve to keep the rail affixed in the recess 10 (notshown) in the table top, and hence in the correct position in the tabletop. In embodiments where the table top is made from medium densityfibreboard (MDF), the corrugations 20 may be enough to affix the guiderails to the table top. Affixing the guide rail to the table top mayalso be carried out by speed prongs, nails, screws or glue, either inaddition to the corrugations or alone. The rail comprises an aperture 22for providing access for fastening means, e.g. for fastening atransverse member or leg assembly to the rail 4. The rail may be furtheraffixed in the recesses by glue or screws or similar fastening means.The aperture 22 provides access to a guide area 23. The general outlineof the guide rail 4 is a C-profile. The inner guide surface 24 isarranged to receive e.g. a nut or the head of a bolt in order to fullyconnect the rail with a leg, monitor arm or similar (not shown). Theguide rail 4 comprises a first outer surface 25 and a second outersurface 26. The guide rail may be manufactured from aluminium, stainlesssteel or another ridged material. FIGS. 7A-7F show different embodimentsof a guide rail 4 arranged in recesses 10 seen in a cross-sectional viewincluding a part of the table top 2. All the embodiments of guide rails4 are preferably made from a material that makes the table top 2stronger than if the table top 2 was made of a uniform material. Hence,the mixing of the properties of e.g. a Medium Density Fibreboard (MDF)table top 2 and an aluminium guide rail 4 enhances the properties of thetable top 2. The table top 2 including the guide rails 4 becomes moreresistant to forces applied resulting in a torque. FIG. 7A shows aC-profile embedded in the second face 9 of the table top 2. It is seenin FIGS. 7A-7F as well as in the other figures that the first face 8 ofthe table top is not affected by embedding the guide rails 4 in a recess10 in the second face of the table top. FIG. 7B shows a guide railprofile similar to that of FIG. 7A, furthermore comprising an additionalprojecting part for providing correct arranging of e.g. a bolt 30 havingan external thread. The head of the bolt, hence the entire bolt, isslidably arranged in the guide rail 4. FIG. 7C shows a nut 31 comprisingan internal thread 32 slidably arranged in the guide rail 4. The nut 31may have opposing surfaces for preventing the nut from being rotatedwhen a bolt is screwed into the internal thread 32. FIG. 7D shows thatthe guide rail 4 is in fact solid, i.e. a solid guide rail 33 comprisinga number of apertures having internal threads 32. FIG. 7E shows a guiderail having a section 34 arranged centrally between a first section 35and a second section 36, all three sections forming an I-profile. Inorder to connect the guide rail of FIG. 7E with another part, a clamp ora hook (not shown) may be used for connecting with the second section.FIG. 7F shows an embodiment similar to that of FIG. 7E, having wheels 37arranged for rolling on the second section 36 on each side of thecentrally arranged section 34. All embodiments of the guide rails 4 maybe connected to the table top 2 by press fits or by having a spike onthe outer surfaces of the guide rail 4 or e.g. by having speed prongsfor being forced into the sides of the recess of the table top.Furthermore, all the guide rails 4 may be connected with the table top 2by glue 29 thereby gluing the table top and the guide rail together. Theguide rails shown in the FIG. 5A-5F are substantially even with thesecond surface 9 of the table top. The guide rail 4 may project in orderto assure a firm connection with e.g. the transverse member (not shown).

FIGS. 8, 9 and 10 show a height-adjustable table having just one legassembly 3. This embodiment features five guide rails 4 where the oneguide rail is a transverse rail 15. All the guide rails 4 are mounted inrecesses 10 in the second face 9 of the table top 2 and are shown withdotted lines. It is shown in FIG. 9 that the free end, i.e. the firstleg end 3C of the first leg member 3A, i.e. the one end of the legassembly 3, comprises a mounting plate 40 for stabilising the connectionbetween the table top 2 and the leg assembly 3. In the opposite end ofthe leg assembly 3, i.e. the second leg end 3D of the second leg member3B, and hence opposite the stabilising plate 40 of the first leg member3A, a foot or base plate 5 is mounted. In FIGS. 9 and 10, theheight-adjustable table 1 comprises two transverse guide rails 15. InFIG. 8, the height-adjustable table comprises two centrally arrangedguide rails 4 apart from the guide rails 4 arranged at the periphery ofthe table top 2.

FIGS. 11 and 12 show two leg assemblies 3 connected by a transversemember 6, i.e. a single cross bar. This traditional construction maycause the table top to flex or twist, thereby making the entire tableunstable. The supports 50 keep the table top stiff at the ends butrestricts the movement of the user. However, when introducing the guiderails, i.e. reinforcing rails, to the table top, the situation depictedin FIG. 11 is less likely to occur. Furthermore, having two transversemembers, i.e. two cross bars, also assists in strengthening theheight-adjustable table as a whole. Hence, the guide rails integrated inthe table top stiffen both the table top itself and the table as awhole, but do not entail the drawback of restricting the movement of theuser's legs underneath the table top.

FIG. 13 shows that the guide rails 4 may also be used for attachingdifferent types of equipment to the table top in an easy and securemanner. Such equipment could be privacy screen holders 70 or monitorarms/bag hooks 75. Furthermore, the cable tray could be attached to theguide rails 4. The cable tray may extend in the full length of thetable. In order to provide for both inbound and outbound positions ofthe leg assemblies 3, the cable tray 80 may be provided with cut-outs60. The cut-outs 60 may have blinds to be taken off immediately beforepositioning the leg assemblies. The equipment as well as the legassemblies could be connected with the guide rails by a spring-loadedball connection. In this way, it is possible to release the pressure onthe balls and adjust the position of e.g. the leg assemblies in relationto the guide rails in a manner not requiring tools.

FIG. 14 shows the kind of deflections in the table top 2 that is soughtavoided by integrating guide rails in the table top. If a heavy load 90is placed at the corner of the table top 2, the corner of the table topwill deflect. Such a heavy load may be a person sitting at the corner orthe height-adjustable table being in its “stand” position with a personleaning heavily on it with his or her elbows or arms. The deflectingcorners 85 will deflect less with guide rails to strengthen the tabletop. The table top 2 is able to withstand a heavier torque applied.

Furthermore, a problem with height-adjustable tables is that the legassembly needs to function regardless of the load distribution on thetable top. Considering a leg assembly connected with the table at acentrally arranged point, a load on a part of the outer perimeter of thetable top subjects a bending moment on the leg assembly. In order toensure that the table continues to be height-adjustable, it isbeneficial that the leg assembly may be moved to a point that supportsthe table top in a manner that results in a smaller bending moment onthe leg assembly.

FIGS. 15A and 15B show in a cross sectional view an embodiment of theguide rail 4. FIG. 15A shows a guide rail 4 having a projection 150extending from the side of the rail. The guide rail further comprises aside 159 that in this embodiment comprises indentations. Theindentations in the surface 159 create a firm connection surface to thetable top 2 in particular when using glue. It is shown that the recess10 is deeper than the first recess extension 151 and it is also deeperthan the second recess extension 152. The depth is measured from thesecond side 9 of the table top 2 towards the first side 8 of the tabletop 2. The depth of the first recess extension 151 in relation to thesecond recess extension 152 is substantially equal to the thickness ofthe projection 150. In other words the first recess extension 151 isdeeper than the second recess extension 152 and the difference issubstantially equal to the thickness of the projection 150 of the guiderail 4. In this way, it is possible for the one side of the head of thefastening means 158 when inserted in the blind hole 153 (see FIG. 15B)to be substantially even with the surface defined by the projection 150of the guide rail 4 and the second recess extension 152. It will beunderstood that various fastening means may be used to hold theprojection 150 of the guide rail 4 i.e. hold the guide rail 4 in therecess 10. In FIG. 15B it is shown that the second side 9 of the tabletop 2 does not have either the guide rail 4 or the fastening means 158projecting from it. Hence, a person sitting with the legs under thetable top can easily move his legs under the table top 2 withoutobstructions even with the table top close to or touching the thighs. Byfastening the projection 150 to the table top 2 using the fasteningmeans 158 i.e. the screw, a sufficient holding force is achievedensuring that the guide rail 4 does not tilt even when the guide rail 4is subjected to a torque/force T from a mounted device such as a monitorarm, brackets for privacy screen 70 (indicated by dotted line in FIG.15B) or hangers (see also e.g. FIG. 13 for privacy screen holders 70 andhangers 75).

FIG. 16A shows a cross-sectional view of an embodiment of a table top 2as partly shown in FIG. 15. It is shown that the recess 10 comprises abroadened section 160. The broadened section 160 is shown in FIG. 16Band is located at the end of the recess 10 and hence, in this embodimentnear the end of the guide rail 4. Due to the radius of the tool of themilling machine it is not possible to get the tight fit between the endof the guide rail 4 and the end of the recess 10. However, whenbroadening the recess at the end it is possible to achieve a straightend section 161 of the recess 10. This is due to the fact that theoutline of the recess curved due to the radius of the milling tool whichis created beyond the walls of the guide rail.

FIG. 17 shows that a torque fitting/bracket 172 is mounted by bolts 170,171 to two guide rails 4. The guide rails 4 are affixed to the table top2 by the fastening means 158 e.g. screws. The fastening means 158 aremounted in the second recess extension 152 and they are thereby holdingthe projection 150 of the guide rail against the table top 2. Hence, ifa torque T1 is subjected to the first rail 4.1 it will transfer aportion of this torque to the second rail 4.2 and vice versa. However,due to the second rail 4.2 being perpendicularly arranged in relation tothe first rail 4.1, the second rail 4.2 will resist such torque better.This is due to the fixation of both the fastening means 158 and thefitting fixation means 173 holding the fitting in place and henceresisting the torque.

Although the invention has been described in the above in connectionwith preferred embodiments of the invention, it will be evident for aperson skilled in the art that several modifications are conceivablewithout departing from the invention as defined by the following claims.

1. A height-adjustable table comprising: a table top comprising a firsttable face and a second table face, and at least a first leg assemblyhaving a first leg end and a second leg end, the first leg assemblycomprising a first leg member and a second leg member relatively movablein relation to each other along a longitudinal axis, wherein the secondtable face comprises at least a first recess arranged to receive a firstguide rail where the first leg end of the leg assembly is connected withthe guide rail.
 2. A height-adjustable table according to claim 1,further comprising a second guide rail.
 3. A height-adjustable tableaccording to claim 2, further comprising a first transverse member.
 4. Aheight-adjustable table according to claim 1, wherein the leg assemblycomprises a motorised height-adjustment means.
 5. A height-adjustabletable according to claim 1, wherein the leg assembly comprises aspring-loaded height-adjustment means.
 6. A height-adjustable tableaccording to claim 1, wherein the first guide rail and/or the secondguide rail is/are substantially even with the second face of the tabletop.
 7. A height-adjustable table according to claim 1, wherein thefirst guide rail and/or the second guide rail comprise(s) threadedapertures for fastening the leg assembly/assemblies to the guide rails.8. A height-adjustable table according to claim 7, wherein the threadedapertures for fastening the legs to the guide rails are arranged in nutsslidably arranged in the guide rails.
 9. A height-adjustable tableaccording to claim 1, further comprising a first transverse memberextending from a first guide rail to a second guide rail, the transversemember being arranged to support the at least one leg assembly.
 10. Aheight-adjustable table according to claim 9, wherein the transversemember is arranged substantially perpendicularly to the guide rail. 11.A height-adjustable table according to claim 9, wherein theheight-adjustable table comprises a further transverse member.
 12. Aheight-adjustable table according to claim 11, wherein the at least oneleg assembly is arranged between two transverse members.
 13. Aheight-adjustable table according to claim 1, wherein the threadedapertures for fastening the legs to the guide rails are arranged in nutsslidably arranged in the guide rails.
 14. A height-adjustable tableaccording to claim 1, wherein the guide rails comprise slidably arrangedbolts arranged to connect the at least one leg assembly with the guiderails.
 15. A height-adjustable table according to claim 1, wherein theat least one leg assembly comprises a fastening plate connecting thetable top with the first leg end.